ABSOLUTE BLACK Oval XTR M9100 Direct Mount chainring

The Original one and only absoluteBLACK Premium, Shimano 12spd Hyperglide+ compatible Direct mount 1X Oval traction chainrings are designed for XTR M9100 cranks. They feature the exact same excellent oval shape as rest of our oval chainring portfolio. This new type of direct mount chainring will make your Shimano crank looking great and perfectly mesh with Shimano 12spd Hyperglide+ chain. This particular chainring will ONLY work with CN-M9100, 8100, 7100 & 6100 Shimano 12spd Hyperglide+ chain due to different thickness of the teeth. Specifications: - Size (Mass +/-1g):30T - Material: cnc machined 7075 Txxx Aluminum. Long-lasting construction! Type II anodizing - Chainline:Dependent on the crank model. Every crank model has different axle length, but same chainrings. - Ovality: Optimized to each size separately. Range: 10.2-14.4% and Timing of 110.5-116.3° after TDC (top dead center) Patent Pending